Basys3 max VGA Resolution

[digility]

What is the highest resolution we can achieve by connecting Basys 3's VGA port to a VGA monitor? For example, can we get 720p output?

 

Can we display a black and white image on the screen? i mean my image isn't containing RGB information. But including gray values between 0 and 255. its 8 bit image.

Edited December 3, 2023 by digility

[artvvb]

Hi @digility

1. I'm not sure what the highest tested resolution for the Basys 3 VGA port is, but the GPIO demo runs at 1280x1024 @ 60 Hz, which requires a faster pixel clock than 720p (108 MHz versus 74.25 MHz). https://digilent.com/reference/programmable-logic/basys-3/demos/gpio.

2. The Basys 3 would only support 4-bit greyscale images, due to each color component only having four bits - greyscale is achieved by setting R, G, and B outputs to the same value as each other for each pixel. You could always truncate off the bottom four bits of the image, obviously losing some information.

Thanks,
Arthur